#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
int mx = -1;
int answ = -1;
int N;
int bSearch(int l, int r, int L, int R){
l = max(l, 0);
r = min(r, N);
if (l >= r) return -1;
if (L + R == mx) return -1;
int mid = l + r >> 1;
for (int i = mid; i < r; i++){
vector <int> a = ask(i);
if (a[0] + a[1] == mx){
int x = bSearch(l, mid, L, a[1] + (mid - i));
if (x != -1) return x;
x = bSearch(i + 1, r, a[0], R);
if (x != -1) return x;
return -1;
}else if (a[0] + a[1] == 0){
return i;
}
}
return bSearch(l, mid, L, R + (r - mid));
}
int find_best(int n){
N = n;
for (int i = 0; i < 500; i++){
vector <int> a = ask(i);
if (a[0] + a[1] == 0){
return i;
}
mx = max(a[0] + a[1], mx);
}
return bSearch(0, n, 0, 0);
}
Compilation message
prize.cpp: In function 'int bSearch(int, int, int, int)':
prize.cpp:16:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = l + r >> 1;
~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
388 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
4 ms |
504 KB |
Output is correct |
| 4 |
Correct |
7 ms |
380 KB |
Output is correct |
| 5 |
Correct |
7 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
440 KB |
Output is correct |
| 7 |
Correct |
4 ms |
392 KB |
Output is correct |
| 8 |
Correct |
9 ms |
248 KB |
Output is correct |
| 9 |
Correct |
7 ms |
376 KB |
Output is correct |
| 10 |
Correct |
8 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
248 KB |
Output is correct |
| 2 |
Correct |
5 ms |
424 KB |
Output is correct |
| 3 |
Correct |
4 ms |
376 KB |
Output is correct |
| 4 |
Correct |
8 ms |
404 KB |
Output is correct |
| 5 |
Correct |
9 ms |
388 KB |
Output is correct |
| 6 |
Correct |
2 ms |
500 KB |
Output is correct |
| 7 |
Correct |
8 ms |
276 KB |
Output is correct |
| 8 |
Correct |
6 ms |
308 KB |
Output is correct |
| 9 |
Correct |
5 ms |
504 KB |
Output is correct |
| 10 |
Correct |
6 ms |
248 KB |
Output is correct |
| 11 |
Correct |
11 ms |
296 KB |
Output is correct |
| 12 |
Correct |
4 ms |
376 KB |
Output is correct |
| 13 |
Correct |
13 ms |
420 KB |
Output is correct |
| 14 |
Correct |
9 ms |
248 KB |
Output is correct |
| 15 |
Correct |
15 ms |
292 KB |
Output is correct |
| 16 |
Correct |
50 ms |
268 KB |
Output is correct |
| 17 |
Correct |
7 ms |
248 KB |
Output is correct |
| 18 |
Partially correct |
49 ms |
276 KB |
Partially correct - number of queries: 5138 |
| 19 |
Correct |
6 ms |
308 KB |
Output is correct |
| 20 |
Correct |
16 ms |
248 KB |
Output is correct |
| 21 |
Correct |
25 ms |
244 KB |
Output is correct |
| 22 |
Correct |
7 ms |
316 KB |
Output is correct |
| 23 |
Correct |
8 ms |
248 KB |
Output is correct |
| 24 |
Correct |
6 ms |
280 KB |
Output is correct |
| 25 |
Correct |
16 ms |
312 KB |
Output is correct |
| 26 |
Correct |
27 ms |
248 KB |
Output is correct |
| 27 |
Correct |
5 ms |
248 KB |
Output is correct |
| 28 |
Correct |
50 ms |
248 KB |
Output is correct |
| 29 |
Correct |
21 ms |
388 KB |
Output is correct |
| 30 |
Partially correct |
53 ms |
420 KB |
Partially correct - number of queries: 5095 |
| 31 |
Correct |
4 ms |
396 KB |
Output is correct |
| 32 |
Correct |
6 ms |
308 KB |
Output is correct |
| 33 |
Correct |
2 ms |
248 KB |
Output is correct |
| 34 |
Correct |
23 ms |
376 KB |
Output is correct |
| 35 |
Correct |
5 ms |
376 KB |
Output is correct |
| 36 |
Correct |
10 ms |
396 KB |
Output is correct |
| 37 |
Correct |
8 ms |
248 KB |
Output is correct |
| 38 |
Correct |
6 ms |
248 KB |
Output is correct |
| 39 |
Correct |
15 ms |
504 KB |
Output is correct |
| 40 |
Correct |
44 ms |
248 KB |
Output is correct |
| 41 |
Correct |
31 ms |
248 KB |
Output is correct |
| 42 |
Correct |
36 ms |
248 KB |
Output is correct |
| 43 |
Correct |
28 ms |
376 KB |
Output is correct |
| 44 |
Correct |
14 ms |
316 KB |
Output is correct |
| 45 |
Correct |
11 ms |
392 KB |
Output is correct |
| 46 |
Correct |
7 ms |
248 KB |
Output is correct |
| 47 |
Correct |
15 ms |
308 KB |
Output is correct |
| 48 |
Correct |
37 ms |
304 KB |
Output is correct |
| 49 |
Correct |
13 ms |
392 KB |
Output is correct |
| 50 |
Partially correct |
29 ms |
376 KB |
Partially correct - number of queries: 5117 |
| 51 |
Correct |
14 ms |
424 KB |
Output is correct |
| 52 |
Correct |
7 ms |
376 KB |
Output is correct |
| 53 |
Correct |
5 ms |
376 KB |
Output is correct |
| 54 |
Correct |
24 ms |
376 KB |
Output is correct |
| 55 |
Correct |
6 ms |
276 KB |
Output is correct |
| 56 |
Partially correct |
51 ms |
312 KB |
Partially correct - number of queries: 5117 |
| 57 |
Correct |
37 ms |
276 KB |
Output is correct |
| 58 |
Correct |
34 ms |
376 KB |
Output is correct |
| 59 |
Correct |
31 ms |
308 KB |
Output is correct |
| 60 |
Correct |
31 ms |
424 KB |
Output is correct |
| 61 |
Correct |
9 ms |
324 KB |
Output is correct |
| 62 |
Correct |
7 ms |
420 KB |
Output is correct |
| 63 |
Correct |
8 ms |
248 KB |
Output is correct |
| 64 |
Correct |
8 ms |
392 KB |
Output is correct |
| 65 |
Correct |
5 ms |
324 KB |
Output is correct |
| 66 |
Correct |
11 ms |
248 KB |
Output is correct |
| 67 |
Correct |
13 ms |
304 KB |
Output is correct |
| 68 |
Correct |
4 ms |
388 KB |
Output is correct |
| 69 |
Correct |
6 ms |
396 KB |
Output is correct |
| 70 |
Correct |
11 ms |
308 KB |
Output is correct |
| 71 |
Partially correct |
51 ms |
296 KB |
Partially correct - number of queries: 5259 |
| 72 |
Correct |
11 ms |
248 KB |
Output is correct |
| 73 |
Partially correct |
60 ms |
248 KB |
Partially correct - number of queries: 5196 |
| 74 |
Partially correct |
33 ms |
248 KB |
Partially correct - number of queries: 5223 |
| 75 |
Correct |
9 ms |
248 KB |
Output is correct |
| 76 |
Correct |
42 ms |
248 KB |
Output is correct |
| 77 |
Partially correct |
31 ms |
308 KB |
Partially correct - number of queries: 5437 |
| 78 |
Correct |
7 ms |
376 KB |
Output is correct |
| 79 |
Correct |
21 ms |
376 KB |
Output is correct |
| 80 |
Partially correct |
32 ms |
376 KB |
Partially correct - number of queries: 5426 |
| 81 |
Partially correct |
45 ms |
388 KB |
Partially correct - number of queries: 5414 |
| 82 |
Partially correct |
57 ms |
376 KB |
Partially correct - number of queries: 5380 |
| 83 |
Correct |
9 ms |
248 KB |
Output is correct |
| 84 |
Correct |
47 ms |
248 KB |
Output is correct |
| 85 |
Partially correct |
58 ms |
248 KB |
Partially correct - number of queries: 5429 |
| 86 |
Correct |
10 ms |
248 KB |
Output is correct |
| 87 |
Correct |
5 ms |
308 KB |
Output is correct |
| 88 |
Correct |
12 ms |
248 KB |
Output is correct |
| 89 |
Correct |
14 ms |
248 KB |
Output is correct |
| 90 |
Correct |
9 ms |
308 KB |
Output is correct |
| 91 |
Correct |
9 ms |
304 KB |
Output is correct |
| 92 |
Correct |
13 ms |
248 KB |
Output is correct |
| 93 |
Correct |
14 ms |
376 KB |
Output is correct |
| 94 |
Correct |
16 ms |
248 KB |
Output is correct |
| 95 |
Correct |
17 ms |
248 KB |
Output is correct |
| 96 |
Correct |
17 ms |
248 KB |
Output is correct |
| 97 |
Correct |
14 ms |
376 KB |
Output is correct |
